guest: it has changed as technology has changed. when we first went on the air in 1997, suspend a radio was available on 90.1 fm here in washington, d.c., and shortly thereafter we became available on satellite radio. as the years went on, smartphones were invented, and those apps were invented. we are now available on the android phone, the iphone, and blackberry as well. host: nancy calo, c-span radio, thank you. we will be right back. >> this government has promised and maintained the closest surveillance of the military buildup from the soviets on the island of cuba. within the last week unmistakable evidence has established the fact that a series of offensive missile sites is now in preparation on that imprisoned island. the purpose of these bases can be none other than to provide a nuclear strike capability against the western hemisphere. >> do you, ambassador, denied that the u.s.s.r. has faced and is facing is committed missiles in europe -- in cuba? yes or no care do not wait for the translation. >> historians, scholars and